Rubber heel



July 26, 1921. A GOLUB 1,636,772

RUBBER HEEL .Filed Dec. 21, 1925 trated by Patented July 26, 1927.

UNITED STATES ABE GQLUB, OF ST. LOUIS, MISSOURI.

RUBBER HEEL.

Application filed December 21, 1925. Serial No. 76,618.

My invention relates to improvements in rubber heels, and has for itsprimary object a rubber heel which is so constructed as to practicallyeliminate the possibility of slipping.

A further object is to construct a rubber heel which is provided withintersecting channels and have that portion of the heel underneath thechannels more resilient than the remainder of the heel so that when theheel is stepped on the channels will close or have their edges movedtoward each other and the heel concave thereby setting up a suctionunderneath the heel and preventing same from slipping.

In the drawings:

Fig. 1 is a bottom plan view of my improved heel;

Fig. 2 is a top plan View of the same;

Fig. 3 is an edge view;

Fig. 4- is a cross section taken on the line -ll of Fig. 2;

Fig. 5 is a bottom plan View of my heel illustrating the manner in whichthe channels close when pressure is placed on the heel; and

Fig. 6 is an enlarged section taken on the line 6-6 of Fig. 1illustrating more clearly the shape of the channel.

In the construction of my device I employ a heel 7 This heel ispreferably composed of live rubber. The heel is provided with a bottomface 8 and a top face 9. Formed in the face 8 and spaced apart from theouter edge of the heel are a plurality of openings 10. These openingsextend only partially through the heel and are for the purpose ofreceiving the securing means, such as nails or the like, by means ofwhich the heel is fastened to a shoe. The openings 10 are eachpreferably surrounded by a circular rib or ring 11. Formed in the bottom8 are intersecting channels 12. These channels have their edges undercutas illusthe numeral 13 so as to leave a sharp edge 14 at the face 8.Adjacent the point of intersection are buttons or projections 15, thepurpose of which will be exface 8 adjacent the plained in detail later.Formed in the face 9 and directly opposite the channels 12 is a recess16 leaving a relatively thin wall 17 between the bottom of the channeland the recess. After the rings 11 become Worn off from walking thisthin wall together with the projections or channels to close when theheel is stepped on by reason of the fact that the buttons 15 push upwardand bend the wall 17 so that the channels when the heel is stepped onassume the position shown in Fig. 5. This will naturally concave thatportion of the buttons and have a tendency to create a suction causingthe heel to firmly grip and preventing slipping when the ribs 11 areworn off, and on account of the thinness of the wall 17 no uncomfortablefeeling will result from the buttons 15.

lVhile I have shown two channels intersecting each other at rightangles, still it is obvious that the angle of intersection can be I:

varied as desired, and that the number of intersecting channels may beincreased without departing from the spirit of my invention.

I may, also, if ribs or rings 11 and also the buttons 15 withoutdeparting from the spirit of my invention. The recess 16 may also bemade cylindrical, that is of equal depth throughout without departingfrom the spirit of my invention.

Having fully described my invention, what I claim is A rubber heelcomprising a resilient member having a recessed upper face and a lowerface, and a plurality of intersecting channels having undercut edgesformed in the lower face of said member, said channels located directlybelow the recess in the upper face whereby that portion of the heel atthe recesses is rendered more flexible, and the lower face of the memberalong said channels more resilient.

In testimony whereof I have afiixed my signature.

ABE GOLUB buttons 15 permits the desired, omit the circular

